<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
    <title></title>

</head>
<body>
<textarea cols="50" id="text" rows="10">输入内容点击按钮就复制好了</textarea>
<button id="btn">click</button>
<button id="remove">remove</button>
<script src="js/Test3.js"></script>
</body>
</html>